167312017-09-16Simulation Environment for Power Management and Distribution Development, Phase IICompletedJul 2013Aug 2016The overall objective of this research project is to investigate autonomous control architectures for spacecraft power systems. Such techniques will be critical for deep space missions that face inhospitable environments, unpredictable operating conditions, and communication delays. The distributed nature of agent-based control will also support plug-and-play capabilities for modular power systems. The first main focus of the Phase II effort is to expand and refine the International Space Station (ISS) model library created in the Phase I. This will enable advanced energy management studies by supporting the interconnection of multiple channels. In addition, hardware validation of both component and system models will be pursued. Finally, Distributed Heterogeneous Simulation will be applied to the system models to accelerate simulation speed. The second main focus of the Phase II will be to utilize the simulation environment to investigate agent-based autonomous controls. In particular, the ability of agent-based controls to perform in scenarios that stress conventional controls will be analyzed. This ability will also be examined when communication constraints (such as sample rates and latencies) and packet loss are present. Lastly, the ISS system model will be integrated with hardware agent emulators setting the stage for hardware experimentation in future efforts.Potential NASA Commercial Applications: The most obvious and immediate NASA application for this technology is the ISS, which was used as the demonstration system for the Phase I. The ISS has a complex electrical power system that is redundant and segmented in nature. In addition, several factors including humans-in-the-loop and communication latency make the investigation into autonomous control of the ISS attractive. NASA's Advanced Modular Power System (AMPS) program is another potential application. The repeated use of modular components is particularly well-suited to analysis with a model library where parameters are flexible but the underlying mathematical model is the same. Additionally, an agent-based control scheme could provide modularity and plug-and-play capability to the controls as well as the electrical components. The wide applicability of the demonstrated approach enables this technology to also be applied to other robust and autonomous electrical power systems such as satellites, landers, rovers and other isolated or limited contact vehicles used during space missions.33432383Space Power and Energy Storage32573.3Power Management and Distribution34483.3.2Management and ControlSBIR/STTRSpace Technology Mission DirectorateGlenn Research CenterGRCNASA CenterClevelandOHPC Krause and Associates, Inc.IndustryWest LafayetteINIndianaOhioTherese GriebelCarlos TorrezAnne McnelisBenjamin Loop28420Briefing ChartImage20184https://techport.nasa.gov/file/20184594102971Project ImageImageSimulation Environment for Power Management and Distribution Development Project Image3812https://techport.nasa.gov/file/381259410